if there actually is dust and blowing actually takes it out of the cartridge then it works. the article was saying most of the time it wasnt dusty so there was no point to blow on it but we all still do it, hell i've done it on CD's, flash drives, power connections, pretty much everything electronic if a quick unplug replug didnt work i have tried blowing in it and eventually it works though blowing doesnt help it makes me feel like im doing something to help it work.

Blowing may have worked at getting the dust out of the cartridge - assuming you observed it - but that doesn't establish that the dust was the cause of the problem.